Home / 2,928.39-4,389.21-1,627.26

Finding the Fourth Proportional to 2,928.39, 4,389.21 and 1,627.26

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Solution

The fourth proportional to 2,928.39, 4,389.21 and 1,627.26 is: 2,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.39 : 4,389.21 = 1,627.26 : x
  2. Step 2: Convert to fraction form
    2,928.39/4,389.21 = 1,627.26/x
  3. Step 3: Cross multiply
    2,928.39x = 4,389.21 × 1,627.26
  4. Step 4: Simplify right side
    2,928.39x = 7,142,385.86
  5. Step 5: Solve for x
    x = 7,142,385.86/2,928.39
  6. Step 6: Final answer
    x = 2,439.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.